Add ActionRunner wrapper for the remaining less used actions (try 2):

tools/telemetry/telemetry/page/actions/seek.py

Index: tools/telemetry/telemetry/page/actions/seek.py
diff --git a/tools/telemetry/telemetry/page/actions/seek.py b/tools/telemetry/telemetry/page/actions/seek.py
index 02ce3ff600d295e94cfb42c72e0803e3a48578f6..1d12693a4d3c9668c7a6a7956f6b8ae77b2e68c2 100644
--- a/tools/telemetry/telemetry/page/actions/seek.py
+++ b/tools/telemetry/telemetry/page/actions/seek.py
@@ -4,18 +4,17 @@
 
 """A Telemetry page_action that performs the "seek" action on media elements.
 
-Action attributes are:
-- seek_time: The media time to seek to. Test fails if not provided.
+Action parameters are:
+- seconds: The media time to seek to. Test fails if not provided.
 - selector: If no selector is defined then the action attempts to seek the first
             media element on the page. If 'all' then seek all media elements.
-- log_seek_time: If true the seek time is recorded, otherwise media measurement
-                 will not be aware of the seek action. Used to perform multiple
-                 seeks. Default true.
-- wait_for_seeked: If true forces the action to wait for seeked event to fire.
-                   Default false.
-- wait_timeout_in_seconds: Timeout to wait for seeked event. Only valid with
-                wait_for_seeked=true
-- seek_label: A suffix string to name the seek perf measurement.
+- timeout_in_seconds: Maximum waiting time for the "seeked" event
+                      (dispatched when the seeked operation completes)
+                      to be fired.  0 means do not wait.
+- log_time: If true the seek time is recorded, otherwise media
+            measurement will not be aware of the seek action. Used to
+            perform multiple seeks. Default true.
+- label: A suffix string to name the seek perf measurement.
 """
 
 from telemetry.core import exceptions
@@ -24,6 +23,15 @@ from telemetry.page.actions import page_action
 
 
 class SeekAction(media_action.MediaAction):
+  def __init__(self, seconds, selector=None, timeout_in_seconds=0,
+               log_time=True, label=''):
+    super(SeekAction, self).__init__()
+    self._seconds = seconds
+    self._selector = selector if selector else ''
+    self._timeout_in_seconds = timeout_in_seconds
+    self._log_time = log_time
+    self._label = label
+
   def WillRunAction(self, tab):
     """Load the media metrics JS code prior to running the action."""
     super(SeekAction, self).WillRunAction(tab)
@@ -31,17 +39,12 @@ class SeekAction(media_action.MediaAction):
 
   def RunAction(self, tab):
     try:
-      assert hasattr(self, 'seek_time')
-      selector = self.selector if hasattr(self, 'selector') else ''
-      log_seek = self.log_seek == True if hasattr(self, 'log_seek') else True
-      seek_label = self.seek_label if hasattr(self, 'seek_label') else ''
-      tab.ExecuteJavaScript('window.__seekMedia("%s", "%s", %i, "%s");' %
-                            (selector, self.seek_time, log_seek, seek_label))
-      timeout_in_seconds = (self.wait_timeout_in_seconds
-                            if hasattr(self, 'wait_timeout_in_seconds') else 60)
-      # Check if we need to wait for 'seeked' event to fire.
-      if hasattr(self, 'wait_for_seeked') and self.wait_for_seeked:
-        self.WaitForEvent(tab, selector, 'seeked', timeout_in_seconds)
+      tab.ExecuteJavaScript(
+          'window.__seekMedia("%s", "%s", %i, "%s");' %
+          (self._selector, self._seconds, self._log_time, self._label))
+      if self._timeout_in_seconds > 0:
+        self.WaitForEvent(tab, self._selector, 'seeked',
+                          self._timeout_in_seconds)
     except exceptions.EvaluateException:
       raise page_action.PageActionFailed('Cannot seek media element(s) with '
-                                         'selector = %s.' % selector)
+                                         'selector = %s.' % self._selector)